||'''Book'''|| Advanced Engineering Mathematics ||
 ||'''Author'''|| Erwin Kreyszig ||
 ||'''Edition'''|| 8th Edition ||

/* code_begins */

{{{
A=matrix([[1,2,3],[1,2,2],[1,2,3]])
A
c=A.echelon_form()
c
print (c[0,0]*c[1,1]*c[2,2])
B=matrix([[1,2,3],[2,2,3],[3,3,3]])
B
d=B.echelon_form()
d
print(d[0,0]*d[1,1]*d[2,2])
}}}

/* code_ends */

 * '''Solution by''': 
   *<N.V.S Saikrishna>, <student>, <Prakasam engineering College>
   *<M.Pavan kumar>, <student>, <Prakasam engineering College>
   *<T.Raghavendra>, <student>, <Prakasam engineering College>
   *<B.Raghavendra>, <student>, <Prakasam engineering College>
   *<Y.Siva kumar Reddy>, <student>, <Prakasam engineering College>
   *<J.lakshmi narayana>, <student>, <Prakasam engineering College>